EP2085348B1 - Elevator controller - Google Patents

Elevator controller Download PDF

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Publication number
EP2085348B1
EP2085348B1 EP06833013.3A EP06833013A EP2085348B1 EP 2085348 B1 EP2085348 B1 EP 2085348B1 EP 06833013 A EP06833013 A EP 06833013A EP 2085348 B1 EP2085348 B1 EP 2085348B1
Authority
EP
European Patent Office
Prior art keywords
car
abnormality
door
brake torque
opened
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP06833013.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2085348A1 (en
EP2085348A4 (en
Inventor
Masaaki Amano
Kazunari Mouri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2085348A1 publication Critical patent/EP2085348A1/en
Publication of EP2085348A4 publication Critical patent/EP2085348A4/en
Application granted granted Critical
Publication of EP2085348B1 publication Critical patent/EP2085348B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices

Definitions

  • the present invention relates to an elevator controller having a function of monitoring presence of an abnormality of a brake torque.
  • JP H01 247 383 A there is described a device for controlling an elevator.
  • a braking command is outputted from a sequence control means to a brake control circuit, thereby restricting the rotation of a cage driving motor by the action of a brake coil. If the rotation of the motor is detected by a counter, this is detected as a brake abnormality by a brake abnormality detecting means.
  • a motor control means controls the motor so as to generate braking torque by the motor itself instead of a brake device to make a cage travel to the final end floor, via a pulse width modulation circuit and an inverter.
  • An emergency brake control device for an elevator comprises a judgment means which takes in an abnormal signal from an abnormality detector means and judges whether or not an elevator should be stopped urgently, a story floor decision means which, based on the judgment, speed signals, car position signals, etc., determines the stoppable nearest story floor, and a brake instruction means which, based on the decision, speed signals, car position signals, etc., calculates braking timing and a degree of deceleration and outputs a braking instruction or a control means which outputs a braking force control instruction. Then, the brake instruction means, etc., output a door opening signal and a story floor signal.
  • the present invention has been devised to solve the problem as described above, and has an object of obtaining an elevator controller capable of distinguishing normal times and an emergency from each other to perform more appropriate elevator control for an abnormality of a brake torque.
  • the elevator controller according to the present invention is defined by independent claim 1.
  • FIG. 1 is a configuration diagram illustrating an elevator apparatus according to a first embodiment of the present invention.
  • a car 1 and a counterweight 2 are suspended by a main rope 3 in a hoistway, and are raised and lowered by a drive force of a hoisting machine 4.
  • the hoisting machine 4 includes a driving sheave around which the main rope 3 is wound, a motor for rotating the driving sheave, and a brake device for braking the rotation of the driving sheave.
  • An operation of the car 1 is controlled by an elevator controller including a controller main body 5. Specifically, the motor and the brake device of the hoisting machine 4 are controlled by the elevator controller.
  • the controller main body 5 is connected to a monitoring center 8 installed at a remote location through a notification device 6 and a general public network 7. In the event of occurrence of an abnormality in the elevator apparatus, the monitoring center 8 is notified of the abnormality from the controller main body 5 through the notification device 6 and the general public network 7.
  • the controller main body 5 includes travel control means 9, brake torque check means 10, emergency operation means 11, door opening/closing judgment means 12, terminal landing running means 13, and alarm means 14.
  • the travel control means 9 controls the overall travel of the elevator apparatus.
  • the brake torque check means 10 monitors, for example, a motor current value to monitor whether or not there is an abnormality in a brake torque of the brake device of the hoisting machine 4.
  • the emergency operation means 11 selects and executes an emergency operation according to a detection signal for an emergency such as an earthquake or a fire. In the emergency operation, the car 1 is moved to stop at the nearest floor or a preset evacuation floor.
  • the door opening/closing judgment means 12 judges whether or not a door is allowed to be opened/closed when the car 1 stops at a stop floor.
  • the terminal landing running means 13 causes the car 1 to run to the terminal landing to be stopped there.
  • the alarm means 14 generates an abnormality detection signal, and outputs the generated abnormality detection signal to the notification device 6.
  • the travel control means 9, the brake torque check means 10, the emergency operation means 11, the door opening/closing judgment means 12, the terminal landing running means 13, and the alarm means 14 are realized by software.
  • the controller main body 5 consists of a computer including a processing unit (CPU), a storage unit (a ROM, a RAM, a hard disk and the like) and a signal input/output unit. More specifically, functions of the controller main body 5 are realized by the computer. In the storage unit, programs for realizing the functions of the travel control means 9, the brake torque check means 10, the emergency operation means 11, the door opening/closing judgment means 12, the terminal landing running means 13, and the alarm means 14 are stored.
  • FIG. 2 is a flowchart illustrating an operation of the controller main body 5 illustrated in FIG. 1 when the car stops.
  • the operation illustrated in FIG. 2 is started when the car 1 starts decelerating.
  • the controller main body 5 monitors whether or not the car 1 has entered a door opening allowable zone (door zone) (Step S1).
  • a door-opening operation is temporarily inhibited (Step S2) to monitor whether or not the car 1 has stopped (Step S3).
  • Step S4 When the car 1 stops, it is confirmed whether or not there is the abnormality of the brake torque, specifically, whether or not the torque is lowered (Step S4).
  • Step S5 When the brake torque is normal, a car door and a landing door are opened (Step S5). Then, the processing is terminated.
  • Step S6 When the abnormality of the brake torque is detected, it is confirmed whether or not an emergency operation is selected (Step S6). If the emergency operation is selected, the car door and the landing door are opened (Step S5). Then, the processing is terminated.
  • Step S7 the car 1 is caused to run to the terminal landing.
  • a load on the car 1 side is larger than that on the counterweight 2 side at this time, it is suitable to move the car 1 to a bottom terminal landing.
  • the load on the counterweight 2 side is larger than that on the car 1 side, it is suitable to move the car 1 to a top terminal landing.
  • Step S8 When the running of the car 1 to the terminal landing is started, it is monitored whether or not the car 1 has entered the door opening allowable zone (Step S8).
  • the door-opening operation is temporarily inhibited (Step S9) to monitor whether or not the car 1 has stopped (Step S10).
  • Step S11 When the car 1 stops, it is confirmed again whether or not there is the abnormality of the brake torque (Step S11). If the abnormality of the brake torque is detected again, it is confirmed again whether or not the emergency operation is selected (Step S12) .
  • Step S13 the activation of the car 1 is continuously disabled until a maintenance person cancels the state of the disabled activation. Then, the processing is terminated. However, if the car 1 is in the door opening allowable zone and a door open button inside the car 1 is operated, the car door and the landing door are opened for a predetermined period of time.
  • Step S16 the door is continuously inhibited from being opened (Step S16) and the alarm is issued to the monitoring center 8 (StepS17). A passenger is continuously trapped in the car 1 (StepS18). Then, the processing is terminated. In this state, until the maintenance person checks to verify the safety, the door is not opened in response to the operation of the door open button inside the car 1.
  • the elevator controller as described above, if the abnormality of the brake torque is detected when the car 1 stops, it is judged whether or not the emergency operation is being performed.
  • the door When the emergency operation is being performed, the door is allowed to be opened.
  • the normal operation When the normal operation is being performed, the door is inhibited from being opened. Therefore, in the event of emergency, the passenger is prevented from being trapped in the car 1, giving priority to evacuation.
  • the door close state is maintained to prevent the passenger from getting into and off the car 1 although the brake torque is still abnormal.
  • the normal times and the emergency can be distinguished from each other to perform more appropriate elevator control.
  • the car 1 if the abnormality of the brake torque is detected when the car stops 1 and if the normal operation is being performed, the car 1 is moved to the terminal landing. Therefore, after stopping, the car 1 can be prevented from being moved a long distance due to the abnormality of the brake torque without any control.
  • the door is allowed to be opened and the alarm is issued to the monitoring center 8 while the activation of the car is disabled. Therefore, when the abnormality of the brake torque is detected even once, the operation of the elevator apparatus is stopped to quickly implement a check.
  • the abnormality of the brake torque still continues after the car 1 is moved to the terminal landing, it is judged again whether or not the emergency operation is being performed.
  • the door is allowed to be opened and the alarm is issued to the monitoring center 8 while the activation of the car 1 is disabled. Therefore, it is possible to cope with the case where the emergency occurs while the car 1 is being moved to the terminal landing.
  • the abnormality of the brake torque still continues after the car 1 is moved to the terminal landing, it is judged again whether or not the emergency operation is being performed.
  • the door is continuously inhibited from being opened and the alarm is issued to the monitoring center 8. Therefore, the passenger can be prevented from getting into and off the car 1 while the brake torque is still abnormal.
  • the functions of the travel control means 9, the brake torque check means 10, the emergency operation means 11, the door opening/closing judgment means 12, the terminal landing running means 13, and the alarm means 14 are executed by the single computer in the above-mentioned example, the functions may be executed by a plurality of devices in a distributed manner.
  • the method of checking the brake torque is not particularly limited.
  • the present invention is applicable to an elevator apparatus including the hoisting machine and a control panel installed in a machine room provided in an upper part of the hoistway and to a machine-room-less elevator apparatus.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP06833013.3A 2006-11-21 2006-11-21 Elevator controller Active EP2085348B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/323163 WO2008062509A1 (fr) 2006-11-21 2006-11-21 Contrôleur d'ascenseur

Publications (3)

Publication Number Publication Date
EP2085348A1 EP2085348A1 (en) 2009-08-05
EP2085348A4 EP2085348A4 (en) 2013-07-10
EP2085348B1 true EP2085348B1 (en) 2016-09-21

Family

ID=39429450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06833013.3A Active EP2085348B1 (en) 2006-11-21 2006-11-21 Elevator controller

Country Status (5)

Country Link
EP (1) EP2085348B1 (ko)
JP (1) JP5015169B2 (ko)
KR (1) KR100928118B1 (ko)
CN (1) CN101460384B (ko)
WO (1) WO2008062509A1 (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2535219T3 (es) 2008-12-19 2015-05-07 Otis Elevator Company Marco de puerta de ascensor con caja para componentes electrónicos
WO2011010356A1 (ja) * 2009-07-21 2011-01-27 三菱電機株式会社 エレベータの制御装置
JP2011136837A (ja) * 2010-01-04 2011-07-14 Toshiba Elevator Co Ltd エレベータシステム
FI123238B (fi) 2011-02-02 2012-12-31 Kone Corp Menetelmä ja järjestely nostokoneiston jarrun jarrutusvoiman uudistamiseksi
JP5743319B2 (ja) * 2011-03-02 2015-07-01 東芝エレベータ株式会社 エレベータシステム
CN103803366B (zh) 2013-12-19 2016-04-27 西子奥的斯电梯有限公司 一种电梯抱闸力矩检测方法
WO2018198244A1 (ja) * 2017-04-26 2018-11-01 三菱電機株式会社 エレベータの運転装置
WO2020136739A1 (ja) * 2018-12-26 2020-07-02 三菱電機株式会社 油圧エレベータの異常検出装置および既設油圧エレベータの改修方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0313502Y2 (ko) * 1985-06-28 1991-03-27
JP2559706B2 (ja) * 1986-05-08 1996-12-04 三菱電機株式会社 交流エレベ−タの制御装置
JPH01247383A (ja) 1988-03-28 1989-10-03 Mitsubishi Electric Corp エレベータの制御装置
JPH04365768A (ja) * 1990-12-26 1992-12-17 Toshiba Corp エレベータの制御装置
JP2635257B2 (ja) * 1991-12-10 1997-07-30 三菱電機株式会社 エレベータ制御装置
JP3373220B2 (ja) * 1992-02-07 2003-02-04 三菱電機株式会社 エレベータの制御装置
JP2930807B2 (ja) * 1992-07-06 1999-08-09 株式会社東芝 エレベータの制御装置
JPH0840658A (ja) * 1994-07-27 1996-02-13 Hitachi Ltd エレベータの非常制動制御方法及び装置
JPH1171079A (ja) * 1997-08-29 1999-03-16 Mitsubishi Electric Corp エレベーター装置
JP2000351558A (ja) * 1999-06-14 2000-12-19 Hitachi Ltd エレベータのドア制御装置
JP2005053674A (ja) 2003-08-06 2005-03-03 Mitsubishi Electric Corp エレベータの戸制御装置

Also Published As

Publication number Publication date
JP5015169B2 (ja) 2012-08-29
KR20090014190A (ko) 2009-02-06
EP2085348A1 (en) 2009-08-05
JPWO2008062509A1 (ja) 2010-03-04
CN101460384A (zh) 2009-06-17
WO2008062509A1 (fr) 2008-05-29
EP2085348A4 (en) 2013-07-10
CN101460384B (zh) 2012-01-11
KR100928118B1 (ko) 2009-11-24

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